capturing the L-group

   

The L-group is dead, in the ideal situation where the outside group is alive and no neighbouring stones come to rescue. However, actual play is rarely ideal or clear-cut and the surrounding group may be short of liberties itself. Post your game positions here where the attacker was forced to capture the L-group.


[Diagram]

Black to play.

unkx80 I believe this problem may been posted somewhere in SL, but I can't find it.


possible solution below...

[Diagram]

Black to play.

Black plays B1. If white plays c it makes an L+1 group which, with black to play, is dead. If black tenukis here, white a, black b white at B1 sets up a ko.

Notochord: Is ko with black capturing first going to be (in the majority of cases) the best that white can get here if black tenuki? Looks to me like d forces 1, then b lives. I agree with the rest, though, I think.


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